when light was inventedC. which country made the first step into space D. how inventions effect people's life (2)、Nylon came out nearly at the same time as ___. A. radioB. cameraC. jet planesD. movies (3)、Which of the statements is not true?A. The wheel was the first great...
The helicopter appeared in 1909. Movies with sound could be seen in 1926. The computer was invented in 1928. A 4 jet planes were used in 1930. This was also a time when a new material was f 5 made. Nylon came in 1935. It changed the kind of clothes people wear. The middle part ...
根据第二段“In the first part of the 20th century, there were many valuable inventions, such as the helicopter in 1909, movies with sound in 1926, the computer in 1928, and jet planes in 1930. This was also a time when a new material was first invented. Nylon (尼龙) came out in 19...
B.when the light was invented C.how inventions affect people’s daily life D.which country made the first step into space 2.In the 1800s,people began to work in order to make . A.explorations B.their life better C.discoveries D.a trip to space 3.Nylon came out of five years later...
wheel2. A jet plane was invented A. in 1909 B. in 1930 C. in 1935 D. in 19283. Who first walked on the moon? A. American. B. Russian. C. Chinese. D. Japanese.4. What does " a desire" mean in the sentence "man had a desire to explore more"? A. a good way B. a ...
whenlightwasinvented C. whichcountrymadethefirststepintospace D. howinventionseffectpeople'slife57.Nyloncameoutnearlyatthesametimeas___. E. radio F. camera G. jetplanes . movies58.Whichofthestatementsisnottrue?___ . Thewheelwasthefirstgreatinventionthatisstillveryimportanttoday.Forhundredsofyears...
The first part of the 20th century saw more great inventions. The helicopter was invented in 1909, movies with sound in 1926, the computer in 1928, and jet planes in 1930. This was also a time when a new material was first made. Nylon came out in 1935. It changed the kind of clothe...
In 1969 man took his biggest step away from earth. Americans first walked on the moon. This is certainly just a beginning, though. New inventions will someday allow us to do things we have never yet dreamed of.( )41. What were invented in the first half of the 20th century? A. ...
A. how inventions have a great effect on people's lives B. which country made the first step into space C. why cars played an important part in everyday life D. when the electric light was invented ( ) 4. Which was an important invention in the 19th century?
根据In the first part of the 20th century.there were many valuable inventions.such as the helicopter(直升飞机)in1909,movies with sound in1926,the computer in1928.jet planes(喷气式飞机)in1930.This was also a time when a new material was first invented.Nylon(尼龙)came out in I935.It ...